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MIL-STD-1678-5B_2_-002.pdf
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AMSC N/A FSC 60GP
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
MIL-STD-1678-5B
w/CHANGE 2
24 June 2022
SUPERSEDING
MIL-STD-1678-5B
w/CHANGE 1
21 May 2020
DEPARTMENT OF DEFENSE
STANDARD PRACTICE
FIBER OPTIC CABLING SYSTEMS REQUIREMENTS AND MEASUREMENTS
(Part 5: DESIGN PHASE, SUPPLEMENTAL AND LEGACY MEASUREMENTS)
(PART 5 OF 6 PARTS)
METRIC
Source: https://assist.dla.mil -- Downloaded: 2022-08-18T19:59Z
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MIL-STD-1678-5B
w/Change Notice 2
ii
FOREWORD
1. This Department of Defense Standard Practice is approved for use by the DLA Land and Maritime Columbus,
Defense Logistics Agency, and is available for use by all Departments and Agencies of the Department of Defense.
2. Comments, suggestions or questions on this document should be addressed to DLA Land and Maritime
Columbus, ATTN: VAT, Post Office Box 3990, Columbus, OH 43218-3990, or emailed to FiberOpticGroup@dla.mil.
Since contact information can change, you may want to verify the currency of this address information using the
ASSIST Online database at https://assist.dla.mil.
3. This standard practice provides detailed information and guidance to personnel concerned with ensuring
standardization of fiber optic cable topologies (optical fiber cabling and associated components) on military mobile
vehicles used in air, land, and sea applications. In general, the requirements and methods specified herein are not
identifiable to any specific mobile vehicle class or type, but are intended to standardize and minimize variations in
requirements, test setups, test measurement procedures, test sample fabrication configurations, and other aspects
that must be addressed for completeness. Where specified, constrains for usage or platform types will be listed. The
term “platform” will be used to refer to the military mobile vehicles in general or, where designated, one particular
class (such as “aircraft platform”) or one particular type within that class (such as “F-35”).
4. In order to provide flexibility in the use and update of the different aspects for requirements and methods, this
standard practice is issued in five parts; as follows:
Part 1: Design, installation and maintenance requirements. This part addresses design requirements for platforms
that use cable harnesses as the means to transport data through optical fiber among communication
network and end user equipment. Larger platforms excluding surface ships and submarines that
route trunk cables through cableways and drop cables to the end user (application equipment), can
cite applicable requirements in Part 1 of the Standard Practice and augment them with use of MIL-
HDBK-2051 and MIL-STD-2042 as appropriate. Surface ships and submarines are to use MIL-
HDBK-2051, MIL-STD-2052, and MIL-STD-2042 in lieu of Part 1 of this Standard Practice for all fiber
optic applications with the exception of Personnel Proficiency. For Personnel Proficiency, Surface
ships and submarines are to use Navy shipboard and application training requirements in
requirement 1306 of this Standard Practice.
Part 2 Optical measurements. Part 2 of this standard practice addresses further details to refine or bound (constrain) the
performance of each optical test measurement addressed. The test methods, such as those in a TIA-455 series
standard or military standard/specification, are cited herein. This part of the standard practice augments the test
method in the standard or specification to ensure consistency with setup and measurement procedure. This
consistency minimizes variations when comparing data obtained from different test laboratories (including
commercial, vendor, Government and Government contractor).
Part 3 Physical, mechanical environmental, and material measurements. Part 3 of this standard practice addresses further
details to refine or bound (constrain) the performance of each physical, mechanical, environmental and material test
measurement or inspection addressed. The test methods, such as those in a TIA-455 series standard or military
standard/specification, are cited herein. This part of the standard practice augments the test method to ensure
consistency with setup, measurement procedure, data recording/analysis and other factors critical to conducting or
evaluating test performance. This consistency minimizes variations when comparing data obtained from different
test laboratories (including commercial, vendor, Government, and Government contractor).
Part 4 Test sample configuration and fabrication requirements. Part 4 of this standard practice addresses further details to
refine or bound (constrain) the configuration and fabrication of test samples for the fiber optic components
addressed. Fabrication methods, such as those in the Shipboard installation standard, MIL-STD-2042, or in the
general series aircraft maintenance manual, NAVAIR 01-1A-505-4/T.O. 1-1A-14-4/TM 1-1500-323-24-4, are cited
herein. This part of the standard practice augments the fabrication method to ensure consistency with use of the
same components (such as cable types) and processes and augments the component specification to ensure
consistency of the test sample configuration.
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MIL-STD-1678-5B
w/Change Notice 2
iii
Part 5 Design phase, supplemental and legacy measurements. Tests that are more unique to the design
phase or tests and inspections that are not just primarily for qualification (supplemental
measurement) are addressed in Part 5 of this standard practice. Prequels in other parts of this
standard practice contained other variants that are now excluded. These variants are now retained
for informational purposes in Part 5. Also, Part 5 addresses some test methods cited in former DOD-
STD-1678. The test methods cited in DOD-STD-1678 are considered obsolete; however, a few
military specifications and commercial standards still refer to some of the test methods. These test
methods are provided in this part of the standard with the recommended replacement method. These
former DOD-STD-1678 test methods are listed under the constraint that they be used only with the
specific military specifications or commercial standards in which they are cited. The intent is to delete
each DOD-STD-1678 test method from that standard practice in Part 5 once its reference from
military specification or commercial standard is removed.
Part 6 Parts and support equipment commonality and standardization requirements. This part of the Standard
Practice addresses component part and support equipment standardization requirements for
platforms that transport data through optical fiber among communication network and end user
equipment. Surface ships and submarines are to use the Navy Shipboard Fiber Optic Recommended
Components Parts List, the Navy Shipboard Fiber Optic Recommended Test Equipment List and the
Navy Shipboard Fiber Optic Recommended Tools List in addition to part 6 of this Standard Practice.
Likewise, larger platforms that route trunk cables through cableways and drop cables to the end user
(application equipment), can cite applicable requirements in Part 6 of the Standard Practice, cite the
Navy Shipboard Fiber Optic Recommended Components Parts List (with the test equipment list and
tool list), or both, as appropriate. The Navy Shipboard Fiber Optic Recommended Components Parts List can
be obtained at the Navy Shipboard fiber optic website. Due to the dynamic nature of web addresses, the current
website URL can be obtained by e-mailing DLGR_NSWC_FOWEB@navy.mil with the subject line "WEBSITE
URL REQUEST". An automated reply will contain the current web address. For surface ships and submarines,
where there is conflict between the cited documents on the Web Site and Part 6 of this Standard Practice, the three
documents on the Web Site shall take precedence.
Source: https://assist.dla.mil -- Downloaded: 2022-08-18T19:59Z
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MIL-STD-1678-5B
w/Change Notice 2
iv
CONTENTS
PARAGRAPH PAGE
1. SCOPE 1
1.1 Scope 1
1.1.1 Applicability 1
1.2 Intended uses for Part 5 1
1.2.1 Primary uses of Part 5 1
1.2.2 Supplemental use 1
1.2.3 Constraints on use
1
1.3 Requirement numbering system 1
1.3.1 Requirement series 1
1.3.2 Revision to a Requirement 1
1.3.2.1 Revision designators to Part 5 Revision B with Change 1 1
1.4 Method of referencing a Requirement 1
2. APPLICABLE DOCUMENTS 2
2.1 General 2
2.2 Government documents 2
2.2.1 Other Government documents 2
2.3 Non-Government documents 3
2.4 Order of precedence
3
3. DEFINITIONS 3
3.1 General fiber optics terms
3.2 Acronyms 3
3.3 Parameter, application 3
3.4 Qualification testing, general 3
3.5 Qualification testing, QPL process 4
3.6 Single parameter testing 4
4. GENERAL REQUIREMENTS 4
4.1 Test sample configurations 4
4.2 Environmental conditions 4
4.3 Test conditions 4
4.4 Laser and fiber optic safety compliance 4
4.5 Use of a standardize approach 4
4.5.1 Design (developmental) testing 4
4.5.2 Legacy support processes 4
4.5.3 Residual DOD-STD-1678 content 4
4.5.3.1 Restrictions on use 5
4.5.4 Supplemental measurements and inspections 5
4.6 Inspection by attributes 5
5. DETAILED REQUIREMENTS 5
5.1 Design phase measurements 5
5.1.1 Temperature-altitude 5
5.1.2 Accelerated stress (vibration with temperature stimuli) 5
5.2 Supplemental measurements and inspections 5
5.2.1 End face geometry inspection 5
5.2.2 Ferrule end face inspection 5
5.3 Supplemental support processes 5
5.3.1 Preconditioning thermal cycling of temperature range 2 cable 5
5.4 Legacy criteria for measurements and support processes 5
5.4.1 Launch conditions 5
5.4.2 Change in optical transmittance 5
5.4.3 Attenuation rate legacy criteria 5
5.4.4 Ferrule end face visual inspection legacy alternate criteria 5
5.4.5 Smoke generation and fame propagation legacy criteria. 5
Source: https://assist.dla.mil -- Downloaded: 2022-08-18T19:59Z
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MIL-STD-1678-5B
w/Change Notice 2
v
CONTENTS
PARAGRAPH PAGE
5.5 Legacy measurements, residual DOD-STD-1678 Methods 6
5.5.1 Low temperature flexibility (cold bend), Method 2020 6
5.5.2 Power transmission versus temperature, Method 4010 6
5.5.3 Power transmission versus humidity, Method 4030 6
5.5.4 Freezing water immersion – ice crush, Method 4050 6
PARAGRAPH PAGE
6. NOTES 6
6.1 Intended use 6
6.2 Acquisition requirements 6
6.3 Subject term (key word) listing 6
6.4 Changes from previous issue 6
6.5 Single versus multiple parameter testing 6
6.5.1 Approach for qualification 7
6.5.2 Approach for design phase (developmental) testing 7
6.6 Superseding document 7
DESIGN PHASE MEASUREMENTS
MEASUREMENT 5101.1 Temperature-altitude 9
MEASUREMENT 5102.1 Accelerated stress (vibration with temperature stimuli) 15
SUPPLEMENTAL MEASUREMENTS AND INSPECTIONS
MEASUREMENT 5201.4 End face geometry inspection 31
MEASUREMENT 5202.3 Ferrule end face visual inspection 47
MEASUREMENT 5203.3 FOVIS with display/automated capture and analysis software evaluation criteria 59
SUPPLEMENTAL SUPPORT PROCESSES
MEASUREMENT 5301.1 Precondition thermal cycling of temperature range 2 cable 91
LEGACY CRITERIA FOR MEASUREMENTS AND SUPPORT PROCESSES
MEASUREMENT 5401.2 Launch conditions legacy criteria 94
MEASUREMENT 5402.2 Change in optical transmittance legacy criteria 99
MEASUREMENT 5403.1 Attenuation rate legacy criteria 101
MEASUREMENT 5404.1 Ferrule end face visual inspection legacy alternate criteria 103
MEASUREMENT 5405 Smoke Generation and Flame Propagation legacy criteria 107
LEGACY MEASUREMENTS, RESIDUAL DOD-STD-1678 METHODS
MEASUREMENT 5501.1 Low temperature flexibility (cold bend), Method 2020 115
MEASUREMENT 5502.1 Power Transmission vs. temperature, Method 4010 124
MEASUREMENT 5503.2 Power Transmission vs. humidity, Method 4030 130
MEASUREMENT 5504.1 Freezing water immersion – ice crush, Method 4050 135
MEASUREMENT MATERIAL
MEASUREMENT MATERIAL 5601.1 Legacy Drawing References 141
COMMON PRACTICES AND PROCESSES
PRACTICE 5701.1 Routing Schemes For Safety Wiring Of Multiple Termini Connectors 144
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